131432479 has 2 divisors, whose sum is σ = 131432480. Its totient is φ = 131432478.

The previous prime is 131432459. The next prime is 131432501. The reversal of 131432479 is 974234131.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 131432479 - 2⁹ = 131431967 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (131432449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65716239 + 65716240.

It is an arithmetic number, because the mean of its divisors is an integer number (65716240).

Almost surely, 2^131432479 is an apocalyptic number.

131432479 is a deficient number, since it is larger than the sum of its proper divisors (1).

131432479 is an equidigital number, since it uses as much as digits as its factorization.

131432479 is an evil number, because the sum of its binary digits is even.

The product of its digits is 18144, while the sum is 34.

The square root of 131432479 is about 11464.4005076585. The cubic root of 131432479 is about 508.4335880616.

The spelling of 131432479 in words is "one hundred thirty-one million, four hundred thirty-two thousand, four hundred seventy-nine".